Bump pillow from 4.1.0 to 8.2.0

Bumps [pillow](https://github.com/python-pillow/Pillow) from 4.1.0 to 8.2.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/master/CHANGES.rst)
- [Commits](python-pillow/Pillow@4.1.0...8.2.0)

---
updated-dependencies:
- dependency-name: pillow
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -4,5 +4,5 @@
 #
 #    pip-compile --output-file requirements.txt requirements.in
 #
-olefile==0.44             # via pillow
-Pillow==4.1.0
+pillow==8.2.0
+    # via -r requirements.in